<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>
    var obj = {
      name: "why",
      "my friend": "kobe",
      "eating something": function () {
        console.log("eating")
      }
    }
    console.log(obj.name)
    console.log(obj["my friend"])
    console.log(obj["name"])
    var eatKey = "eating something"
    obj[eatKey]()
  </script>
</body>

</html>